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81d04db08f
* stubbing out request id * passthru or create request id's in api and model server * add onyx request id * get request id logging into uvicorn * no logs * change prefixes * fix comment * docker image needs specific shared files --------- Co-authored-by: Richard Kuo (Onyx) <rkuo@onyx.app>
63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
import base64
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import hashlib
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import logging
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import uuid
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from collections.abc import Awaitable
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from collections.abc import Callable
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from datetime import datetime
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from datetime import timezone
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from fastapi import FastAPI
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from fastapi import Request
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from fastapi import Response
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from shared_configs.contextvars import ONYX_REQUEST_ID_CONTEXTVAR
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def add_onyx_request_id_middleware(
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app: FastAPI, prefix: str, logger: logging.LoggerAdapter
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) -> None:
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@app.middleware("http")
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async def set_request_id(
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request: Request, call_next: Callable[[Request], Awaitable[Response]]
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) -> Response:
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"""Generate a request hash that can be used to track the lifecycle
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of a request. The hash is prefixed to help indicated where the request id
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originated.
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Format is f"{PREFIX}:{ID}" where PREFIX is 3 chars and ID is 8 chars.
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Total length is 12 chars.
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"""
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onyx_request_id = request.headers.get("X-Onyx-Request-ID")
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if not onyx_request_id:
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onyx_request_id = make_randomized_onyx_request_id(prefix)
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ONYX_REQUEST_ID_CONTEXTVAR.set(onyx_request_id)
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return await call_next(request)
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def make_randomized_onyx_request_id(prefix: str) -> str:
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"""generates a randomized request id"""
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hash_input = str(uuid.uuid4())
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return _make_onyx_request_id(prefix, hash_input)
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def make_structured_onyx_request_id(prefix: str, request_url: str) -> str:
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"""Not used yet, but could be in the future!"""
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hash_input = f"{request_url}:{datetime.now(timezone.utc)}"
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return _make_onyx_request_id(prefix, hash_input)
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def _make_onyx_request_id(prefix: str, hash_input: str) -> str:
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"""helper function to return an id given a string input"""
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hash_obj = hashlib.md5(hash_input.encode("utf-8"))
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hash_bytes = hash_obj.digest()[:6] # Truncate to 6 bytes
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# 6 bytes becomes 8 bytes. we shouldn't need to strip but just in case
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# NOTE: possible we'll want more input bytes if id's aren't unique enough
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hash_str = base64.urlsafe_b64encode(hash_bytes).decode("utf-8").rstrip("=")
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onyx_request_id = f"{prefix}:{hash_str}"
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return onyx_request_id
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